Shoe-bottom filler.



ANDREW THOMA OF CAMBRIDGE, MASSACHUSETTS, ASSIGNOR TO NORTH AMERICAN CHEMICAL COMPANY,

OF BOSTON. MASSACHUSETTS, A CORPORATION OF MAINE.

SHOE-BOTTOM FILLER.

No Drawing.

To all whom. it m up concern Be it known that I, ANDREW THOMA, a citizen of the United States, residing at Cambridge, in the county of Middlesex and State of Massachusetts, have invented an Improvement in Shoe-Bottom Fillers.

Practical experience with my commercial shoe bottom fillers has made evident to me that one of the prime essentials of a granular filler material is that it shall not merely contain components whereby the ground cork and binding agents may be readily mixed together, but shall contain components which shall cause the said mixture to remain unchanged for a suflicient length of time to allow its proper installation within shoe bottoms (in accordance with the usual relatively long delays common in shoe factories). Therefore, according to my present invention, the shoe filler is not only sticky and possessed of the general properties set forth in my Patent No. 945,294 of Jan. 4, 1910, but when set to a certain degree it is thereafter slow hardening. By this I mean that it is quick setting to that consistency which is requisite for the filler lodged in the shoe bottom while awaiting the sole laying process, but, having thus quickly set to said consistency or condition of stiff plasticity, the further setting or hardening comes then practically to a halt, so that from that point forward the preparation is characterized by being slow hardening and slow drying. A further characteristic is that the filler does not dry out (in the way, for instance, as would be expected of a gluey or gelatinous compound, in accordance with the nature or commonly recognized properties of glue or gelatin), but for. days remains tacky or sticky, like ordinary rubber-cement filler. A third important feature of the invention is that the filler remains yielding and conformable during the sole laying operation under the leveling process to which the shoe bottoms are subjected during the manufacture of the shoes and yet later becomes tough and substantially non-conformable, without however becoming dry, hard, stiff or unyielding. The leveling pressure requires that the filler material shall remain conformable so as not to interfere with the proper shaping of the shoe bottom, and yet shall remain sufliciently sticky, adhesive and Specification of Letters Patent.

Patented Apr. 6, 1915.

Application filed November 7, 1910. Serial No. 591,207.

cohesive so as not to be materially influenced by the crowding pressure of the leveling machine, and accordingly it is one object of my invention to attain this result in a superior degree (the process or method, broadly considered, being duly claimed in my copending application Serial No. 687,385, now Patent No. 1,036.93 dated August 27, 1912). This point will be clearer by bearing in mind the contrast of my filler, although preferably containing glue or glue-like components, over the natural characteristics of glue, which, when set, does not allow itself to be disturbed without loss of cohesion and adhesion. Furthermore, my present filler, although it does not attain its permanent set condition until the shoe has been completed, is then not only tough but is also firm holding so as to retain tenaciously its grip against the leather of the innersole and the outersole. Likewise it is Water repellent (the large proportion of the naphthalene influence being very effective), and is adapted to a commercial packaging without suffering loss of quality or usefulness through storage, and is especially suitable for subsequent spreading of the mass within shoe bottoms, and stays where put, 2'. 6., it does not slide away. When set to its permanent condition, the binding medium and ground cork form a rubber-like mass in that it is absolutely non-shifting and tough and yet is yielding so as to form a proper cushion for the foot of the wearer of the shoe, but it is not drawing or heavy and dense.

Preferably my present invention is of the same nature as in my Patent No. 945,294 aforesaid, and is subordinate thereto. I have found the use of glue very useful, as stated in said patent, as a chief component of shoe bottom filler, using said term herein to include the variety of mixtures suitable for said purpose as set forth in said patent, and among which. may be enumerated (from said patent) albumen glue, casein glue, starch glue, vegetable glue, marine g us.

One object of my present invention is to provide specific means in the form of chemical reactions and combinations, for rendering the glue (by which term I include the various gelatinous components mentioned in Said patent) fluid, sweet and wholesome, and

to protect it against deterioration, precipitation or separation from its solvent or other admixed ingredients under ordinary atmospherie conditions such as are met with m general commercial use.

A further object of my invention 18 to provide a compound in which the means used for thus preserving the proteid matter is sufiiciently simple, effective, inexpensive and harmless (to the leather, stitching and adjacent fabric) to render it practical for the handling of large quantities of material, as required in the commercial manufacture of shoe bottom filler.

\Vhen carried out in its preferred form, my invention is capable of providing a binding constituent or binding cement which may be itself stored without undergoing objectionable change, so as to be ever ready to be intermixed (as the binding medium or agent) with the granular body (preferably round cork) of the filler material to be placed within the shoe bottoms. The cementitious portion or binding agent may be admixed with the granular body in a cold state and the completed mixture or shoe bottom filler may be then applied in a col state to the shoe bottom. This method is preferable from the standpoint of convenience as it simp 'fies the operation and promotes the comfort of the operator, but my filler is intended also to be subservient to heat application. In the latter instance a less amount of water is required in the filler and it is therefore quicker setting. As however the water solvent of my filler is less paramount or assertive than in ordinary glue solutions, it does not interfere with the drying and setting of the installed material sufliciently to require the heating process Glue is desirable as a binding medium because it in itself the qualities of tenacity and stickiness requisite to unite parts strongly and firmly, but it is not water repellent and when set it lacks a surface suffieiently sticky or adhesive to assist in the attaching of an outer-sole to the prepared shoe bottom (which does not take place, in practice, until quite a while after the filler is applied). On the other hand, I have found that a great many of the sticky, gummy, cement-componen which mi ht otherwise be fit to be used for shoe er purpom, are rendered unfit by lacking the aforesaid qualities of tenacity and strength which are so abundant in glue. Accordingly it is the object of my resent invention to unite these difierent rs in such a manner as to gain the results,- and it will be noted that said results are gained, by my invention, in a surprising de- The sticky adhesive of my preparation is preferably a natural product, which may be sticky and workable in itself, or of an artificial resinous nature, preferably prepared by treating resins wi dissolving or fiuxing means which render them so sticky or pitchy. Aside from these are other artificial products fitto be used for my purpose, such as tarry pitches like stearin pitch and the various petroleum pitches, or similar preparations having like properties and therefore capable of forming the desired sticky element mentioned for combination with the tenacious or strong and tough lue solution mentioned. I have found, or instance, that by subfie ug five parts of rosin to one part of naphthalene to a melting process, these two solids produce a semi-fluid mass which is very sticky and adhesive (and which in my PatentNo.1,l21,054, dated December 15, 1914, I have called a resin naphthalate). By melting six parts of glue in ten parts of water and adding to the heated solution two parts of chlorid of calcium and five parts of the above naphthalene and rosin, I obtain a cementing fiui which is of transparent, smooth-flowing consistency, well adapted to my purpose. The ehlorid of calcium renders the glue fluid and stops the jellifying of the same, and thereby afterward renders the glue component of the filler slow-drying. The action of the ehlorid of calcium is not only efl'ective on the glue portion of the preparation, but is equally beneficially. active on the rosin paste by furthering the chemical union between the two ingredients. The dissolving action of the naphthalene on the rosin is such that the latter component is in the state of a paste when admixed with the glue solution, but on account of the thorough amalgamation of the whole mixture I am led to believe that the said solvent is also eifective on the lue component, as the union or chemical coa escing is surprisingly thorough and perfect and without trace of separation,this bein one of the desirable objects to be attain Aside from the fluxing action of the naphthalene, its presence is most elfective as a preservative and sweetener of the proteid matter, and it therefore fulfils a double urpose, 'ally when it is borne in min that this let material is manufactured in large quantities in liquid form but is often storedfor months he ore it is finally n An addition of two parts of glycerin to the above formula gives to the filler mass when set, a greater Olein oil is a desirable agent either with or without the glycerin, for softening the mass or renderin the luey component more flexible, as ereina r explained at more length.

I have given the above specl formula merely as an illustration to explain the general composition of my prep on, for it will be readily understood that large variations can be made without materially modiother hand,

fging the ultimate objects and advantages of t e cement. For instance, casein, starch, dextrins, mucilaginous gums,or like products, may be substituted for all or part of the glue component, thereby diffusing the toughening influence of the glue throughout a larger and cheaper mass and not only altering the proportionate amount required of the chlorid of calcium, but bringing into play other chemical ingredients which in a like manner influence the solvent parts to effect a more fluid condition. Thus, Whenever it is desired to give the Water-absorbent, stiffening portion of the compound an appearance of bulk, satisfactory results are obtainable by a combination of the Inc as a toughening means with the fluff; starch (such as apparatine, z. e. for example), wherein the glue constitutes the tempering or toughening component for the firmer-setting starch. Again, solutions of dextrin or casein or both can be tempered in the same way by glue, thereby spreading, so to speak, the effectiveness of the glue when very plastic (for in stance) throughout the mass of the much cheaper dextrin, casein, etc. This illustrates the scope and effectiveness of the toughening, Water-absorbent component. The same is true of the water repellent, sticky, resinous component, (i. 6. large variations of other ingredients may be substituted in whole or in part for this portion of the compound), as will appear more fully later on in this specification. Various combinations of resinous, tarry, or pitchy ingredients may be provided by fluxing the same to the desired consistency, with or Without the dissolving influence of naphthalene. In fact, the rosin component may be added in the form of resinates, rosin soaps, or emulsions, Without departing from the principle of supplying this particular element to my solution. A compound even less thoroughly amalgamated than in the specific illustration above, and formed of components averse to a complete flexing into one another, may accomplish the purpose of uniting the granulated filler-material within the general meaning and composition of my preparation and invention, as appears later herein. The chlorid of calcium has the advantage of being very cheap, but instead thereof chlorid of mag nesium may be used, or chlorid of Zinc or alkalis, acids, or both, so as to neutralize one another in the preparation and thus become the means of accomplishing the chemical union or fluidifying of the ingredients. Also, although more expensive, I have found the use of alizarin or water-soluble oils eflective for the modifying purpose described in connection with my preparation, the dissolving action thereof being equally effective on both glue and resinous matter. On the a considerable variety of oils can preparations starch-glue,

be used to act as a softening agent on the resins alone or on both of the principal components of the cementitious liquid.

The formula thus far discussed has been chosen for that purpose as being the best with which to explain, not only the components required, but also their relation to, and action on, one another, and especially the novelty of the combination and its consequent results. I have endeavored by this formula to present a clear, concise illustration of the principles and objects or results of my invention, which latter has a wide Scope of composition, use, and advantages. In this illustration, the slow-drying principle sought for is controlled by the action of the chlorid of calcium upon the proteid matter and by the naphthalene in its dissolving and slow-evaporating union with the resin, but many substitutes may be used for these ingredients. The glue would normally tend first to jellify (in connection with water) and then, When applied, would keep on hardening until it got brittle (in its original state). This is prevented for the time being by the chlorid of calcium, so that it is slow in tending to get to this point. The glycerin gives the glue resiliency and pliability or softness. The product of rosin and naphthalene introduces the sticky element in such form as to be equally slow drying and works in harmony with the gluey component and coalesces perfectly with the same on account of the presence of the chlorid of calcium. The olein oil, virtually a chemically treated castor oil, enters in complete union with both the gluey and the resinous components on account of its peculiar solubility, i. 6. it fluxes with Water on the one hand and oil on the other hand in a remarkably practical manner, I aim to render the glues soluble and liquid in such a manner as decidedly to modify their tendency to harden or gelatinize (or jellify) Without impairing their tenacity or strong adhesiveness, so that they will tend to remain for a long time relatively clear and syrupy, and this tenacious syrupy component is so combined with the normally sticky, tacky resinous component that the short, Weak adhesiveness of the latter is eliminated from the compound, or rather is strengthened into a tough cohesion and adhesion, While the non-sticky and nontacky, brittle or non-shiftable normal (i. 6. When set) quality of the gluey component is eliminated or changed into a sticky tractable or modable and impressible component, which, when the compound is mixed with the ground cork (or other filler base), will retain its laid shape, but not rigidly so, being responsive to pressure, i. 6., being somewhat elastic or tending to resume its original [shape when momentarily distorted. \Vhen the ingredients are brought together so as to combine these two primary principles,

) pose in rendering and in accordance with the foregoing expla nation, the filler is quicksetting in the sense of stiffening at once upon being spread out thin in the shoe-bottom, but without becoming hard or dry, and thereafter it is extremely slow hardening or drying, and has the further characteristic of always holding tenaciously together in a permanently moldable or conformable and elastic body.

In further explanation of the wide range of chemical components contemplated, it may be pointed out that, without making any change in the before explained tenacitygiving component of the solution, namely the glue, 1 have found that as a substitute for the six ounces of the product of naphthalene and rosin of the before-mentioned formula, I can use, for instance, five ounces of white pine pitch (a semi-soft sticky exudant from certain pine trees), and from one half to one ounce of naphthalene (according to the consistency of the white pine pitch), or I can use five ounces of fir balsam (a sticky vegetable product similar to the white pine pitch) and the same one half to one ounce of naphthalene, or six ounces of crude turpentine (sometimes tian turpentine), or five ounces of gundy pitch and one to one and one half ounces of naphthalene (when the pitch is semi soft, but when harder a large proportion of napthalene is required). Instead of the naphthalene, I may use another slowdrying solvent for the sticky resinous component, such, for instance, as creosote extract, which is very practical for my purthe resin sticky and adheften called sive. In like manner, pure tar, 0 Stockholm or Wilmington tar, can be to accomplish thereduction of the resins to the desired sticky, semi-soft condition. On

account of the natural variation of the different creosote liquids (which range from a water white to thick dark fluids), it is somewhat diflicult to give accurate proportions, so that the best I can do is to state a formula which gives the right proportion for the creosote of a speci c gravity test (from which any one skilled in the art can determine the right proportion of any other range of creosote) as follows: six parts glue in ten parts water, two parts chlorid of calcium, two parts glycerin, five. ounces white pine pi h, and two ounces creosote of a specific gravity of 0.980. 01', for the sticky resinous component, may use thin fir balsum, or may use I'OSIII, On account of the dark brown nature of the Wilmington pine tar, which is still more in creased throu h concentration by the heat, the resulting liquid binder of the filler when made therewith is of a darker nature and hence somewhat objectionable on this account, besides its strong peculiar tarry odor, but is otherwise capa le of producing, in

or Burgundy pitch.

combination with resins, sticky mass, two parts of the pine tar being used to five parts of rosin, etc. In fact, Stockholm tar can be reduced by boiling to a plastic condition as described without any additional resinous ingredients. I may also class among these dark ingredients, steal-in pitch, which often is sold to the trade in the desired soft condition, but when too hard can be adjusted by solving ingredients such as previously mentioned. I wish to emphasize that the preferred method of re ducing or producing these sticky components is by the use of a slowly evaporating dissolving agent whereby the drying-out of the latter leaves the filler mass in a condition subservient to or responsive to the ultimate tougher conditions of the gluey or gelatinous component. On the other hand, combinations can. be formed between pitches and resins which bring about this slower setting of the cement binder by means of saponlfying the vegetable resins similar to a soap, so that the resulting resins, in union with the glue or like bodies, produce a good binding agent for the granulated cork or colnminuted filler base. I have also found that alizarin oil (and the so-called soluble oil), used principally in the sizin and finishing of cloths, is capable of orming a union between the glue and the resinous sticky matter, which is of special value in supplying elasticity to the glue and becoming the medium of perfect fluxing for the 'arious components. For instance, the following formula gives good results: six parts of glue in nine parts of water and two chlorid, four parts of alizarin oil olein a very serviceable oil), and six parts of rosin. Another for- V mula is four parts of glue in four parts of water, one and one-third art of chlorid, four parts of alizarin oil olein oil), three parts of the naphthalate of rosin, as mentioned, (i. e. the explained product of rosin and naphthalene,) six parts of plain rosin, and two parts of thick viscous oil- In this formula, glue of the preceding formula, I have substituted for two of said six parts of the gluey tenacious matter, an equal rtion (two parts) of th1ck,'v1scous oil, so that the resulting preparation, although some- .what less tenacious, is in a Water repellent. This latter feature can be still more improved b a larger proportion of the linseed oil. 0 complete fl of these ingredients (in this last menti formula) results in a smooth-flowing pro ration, the thickness of which is princi y controlled by a proper amount of water. Regarding the fluidi of the preparaficm in which have inclu ed olein oil ass fluxing medium, I do'not intend to limit myself to the use of water alone, as naphtha can take the place of water without any great instead of the six parts of i 26 e q mule's ,given to. illus rat mucflggmqus substances Bushes natural (suche nhoiled "j o gliiley com on (as w1ll app ear moi'e sticky.water-rppellent ch e, the ingr du 'c snn lp o i e-y', 1tu er,.gutti etc., the whole, wil four' parts of glue, ve parts j n thejggm of engip tha' so1ution, being edof alizarin oil, t.wo' parts .0 thick viscous m xed yi 'lijh yfllfi filIer mQte'naI oil (linseed), thr ee pants oithenaphthalenetothe consiste cy requis te f o'r a shoe-botand-rosin, and 'sixparts .ofplein rosin, t0- ',to m iiller, .v1 z..,to the condition of e semi- 'gether withnaphthesuificient to reduce the solid. .self.-'usta,1m g mass. 1 Such com-* required fluidity. With water or the fluid cold or hot esmay be ;To sum'jup, ,therefore,' iny filler,

syrupy nature (i.-e.it1s what I call m emul- ,es, thus .is'ut V ivould contain m its 10 8101], in which the resinous ingredients are more coinplex cprnpos ?on, withthe corresaponified),.while;theabovene hthwsolvant spond i.ng udvantggese menufectu 'e, cost, formula produces a rich ,a nber color, but .Storageend use, thejollgwlng leadmg: fee-A when the cement binder has set, the pppeartux-es, V12: gluey muc legmous or gelatinous lence, of the materialisthe same in both mattqrwvhgch puldgnclugie, as previously 16 sea eisplemed, gelatinous .,Inst 1' or other pro- .80 I wish to emphasizethe largevenation of te1d 'enderedfi u d a d. non-jellified by the ingredients .which .it is possible to br ng chlor d .of calc lun or other chloride, etc., intousewithout depart ng mmr l ,sp ,me tiqne eq t y e pe ura or .artt and .scope of my invention. .For mstence ficial pucfleg1nous.1,l 1greqhents' g j t t,

h i thJ- flp Rm p heat res onsive, V vahmmn or elem oil show the adaptability st cky, re's1nous n atter (.which-Jvould in- .of this ,artificial .water oil in ffpr mgpgthe elude, the jltos n or. other pitchywaxyre i medium for introducing sticky oily. mgrediend combina-tionsan'd like neterials, dread ems whi illmm flmge t pwu fle tmentwn e dlflui o mifluid with t 25 kg of the preparation. S0,,1n some n 1- ecreosqte, nephthalene, fl orogher 9Q stances, itjmay beidesipablqtoiptroduce varl- ,slojv;dry mg, so d sous othe glue constituents or mucilaginqus 317s) clump bulkfglmguomgrilfifioushab sub an e we F E 9 nd.- Flas'ifist or artificial gums ma e. therefrom, or snm inq t gngd i .|;hj paragraph us 6H gums, I b' 'et 'th 1 i te t i )iohinmasing the gum are 1c 0. e1 er m page 0 A ran an 3am, matter part of the previouslyd t.

esc :1bed .g1ueyepmsuc h asfi e olein oil for also, the st cky res nousumgred ent h htj end union between the water or of.all of thesaucl previously descnbed fl muc leginouszcpmppnent .endfthe I v hcet-Isponsive'com- 1 later, ere n) The fi mgend m mponcnt (although not; f, heat neces- .duc t1 o,n of th li 189 8 18 m y 9 )},81y08 in' 'fprso Qand facihtq tefl e so1uble 011. .Both the e d ng 'the union ,of the ,wate'r flisselv ed olein oiLan filycenn are wateg-solulgle fath ucilgginqus natter with theotherwise op- 4 derived oily, 'qmds (asmentmned I.n.m p sing.elenzents ,a. gfic" my m applicatipn, rial 1Y0. 550,802 filedMar ,1,n .igaphghgtflsolution (an prefel abl con- 2 1.910 a O W111- pp i n- 111 r 41nd a-like genericall aimed her ein),'.a1 1d these ubsmoesmna hod j e i'h fi cork 80 m v e eqw fi e y ch to ,forego' "filler 46 or e; es e n mhmcl de .q-p uhe it e pygh ,ulponenti s fiifiusedmenen I I ents, such as I roteids, starches, ,chlorid ren ersthe glue (or like element gums-(iambic, el -instance), rub gutta 'mucileginous and lipid, inste d of i5 percha (and other gu ms cut by naphtha), (when cold) .but is note solvent, 011s, fats, fatty acids, resins, pitches, and the soluble oils and g1 cerina'et on both etc, (us mentioned also in my patent ,the muciluginous matter i. e. the water reaforcsald :For' 1 co, the aqueous solusponsive mitter) and the gummy, sticky, f lple prnteid, previously dissolved 1n yccementitious matter v (i. e. the heat re- 0 ;e1 -,1 n ,enq -ole n 011, 'as mention is sponsiveQweter repellent matter or ele- 126 evuporatedto rovide for the su uent socould not maihtain at this Bta of the use lution thereofih na htha. and th efidmixed ofthe' filler). The slow pro' rty 130 i with nephtha-solube-sticky'matteqsuchas is due to the dissolving uence 0P nien e imaeria y n this same feature, and the use proves the V at. The volatile fluidifymg agent or agents,

the filler preparation above chlorid in the first instance, and then to the naphthalene and other non-aglueous solvents mentioned and to the olein. he viscous oil and runs mentioned are capable, in this combination of an extremely fine' dissemi nation and therefore more capable of spreading the water repellent influence throughout the mass in a way which materially imuick setting, slow-drying feawhich is the paramount feature aimed whether primarily water or na[i)htha, aids of 0th in the combination, as explained, facilitates the combination of (together with the advantages of) the glue, which is responsive to water, but not to naphtha, and the other etc, which are readily soluble in nafiitha, and not in water.

S of ingredients which do not flux in the same sense as the first specific formula men tioned, but which, on account of the thick fluidity of the preparation, permit the opposing sticky ingredient to dissolve better so as to read throughout the mass in a finer solution, finer dissemination or subdivision and state of morenearly complete fluidity or molecular separation, so that its sticky nature becomes sufficiently active and uniform among the granules of the cork mass to fulfil the desired purpose for a shoebottom filler. The species 0 this combination forms the subject matter of my divi' sional application Serial No. 707,745, filed July 5, 1912 whith is in part a continuation 'of and largely divided from my application,

Serial No. 432 083 filed May 11, 1908 (and sinee'becomefiat. No. 1,032,312), where the same is broadly claimed, the invention.

therein-disclosed including this form of my present invention, excepting that it does not include the slow-d1 ying feature of the gluey component. For instance, I find this to be the case with petroleum wax tailings used in connection with the lueortion of escri d. The reason for this is that the saponifying influence which is possible with resins cannot be developed on these petroleum pitches, and hence it is only in a heated state that I am' able tosecure the homogeneous conditions required in the cement h uid, which,

upon cooling, shows the require finelfy 311G;

vided separation and distribution 0 mineral pitch. While therefore, the preferable perfect chemica subdivision or union of the ingredients in the formulas previously discussed is lacking in the com ound now being ex lained, this objection is not noticeable in t e set granulated filler mass, and accordingly because of the extremely sticky nature of this compound and also from a stand oint of econom it is sometimes prefera le, or, if not w olly so, it is invention also includescombinations at times desirable to substitute the mineral itch, at least in part, for the rosin or the ike in the preceding formulas. Advertmg now again to the tenacit -giv-' mgmember of my preparation, name the glue, it 15 to be noted that the glue, ge atin, or like materials, possess great binding qualities, especially noticeable with granulated cork. This latter material, when slightly coated with my gluey binder, forms in itself a fairly resilient mass, the resiliency of the granulated cork mass being greatl improved by overcoming the normal rittle nature of the glue, as explained, either with glycerin or w th olein oil or both or with combinations of thick viscous bodies, as explained. While glue, properly so called, is

. referred for the reasons already stated, I

include among the gluey constituents of my bindin agent or preparation, considered as a who e, casein, our, starch, dextrins (or artificial gums made from starch), natural bic, etc., but I do not ims such as gum ar a intend to depend entirely for the tenacious quality upon solutions containing[ these starchy or gummy solutions, but select sticky, resinous ingredients having a. per- .ting glueyconstituents (such as the casein,

flour, etc, mentioned), so that the eventual union of the various ingredients will be suflicientl tough and firm as reuired for the shoe-bottom filler. When dextrin, casein, or starch ingredients are used for the water-absorbing component or member I prefer to supply to these ingredients softenin means, such as olein oil or lycerin, or orid of zinc, or other chemical means for preventin the hardening o the cement coating of t e granules, aside from or in addition to the fact that I supply to the sticky mmy resinous ingredients a permanent uxing or softenin agent (preferably oils or soft tarr liquids This enables me to rovide lia ility and yielding qualities erived rom both the water repellent and water absorbent ingredients. Hence the resulting filler-mass remains conformable even after setting, and also retains proper tackiness for the desired purpose and length of time. For instance, one and one half parts of corn starch, nine arts of water, one half part of causticsoda with a proper neutralizing quota of sulfuric acid), one and one half parts of alizarin oil, three parts rosin, one quarter part naphthalene, and one and one half parts vaseline, XII'IOdHOGS the desired filler binding agent. other illustrative example for rendering this feature of my invention more clearly understood is three parts of gum arabic, two parts glycerin, one part chlorid of calcium, four parts of the naphthalene treated rosin (which is elsewhere referred to as a naphthalate, as already explained), and suflicient water to give the desired fluidity.

As 1 have explained fully the use of shoebottom fillers, whether used hot or cold, in my preceding patents, and as said use is also well known in the art, it is sufficient to say that, having prepared the liquid bind ing agent, it is intermixed with the cork in the proportion of about one gallon of the liquid to four to five gallons of the granulated cork, so as to thoroughly and entirely coat each granule and bind all the granules together with the very thinnest possible union of binding agent, suiiicicnt merely to maintain the mass properly together as a homogeneous body. The filler thus madeis readily laid or smoothed down into the shoe bottom by a usual spreading tool, simply moistened.

This application contains the generic or foundation claims to cover broadly the quick-setting but slow-drying, sticky, resilient fillers of a large number of species, together with specific claims limited to the species containing resinous ingredients made sticky by suitable agents. Many of the species disclosed in other copending cases, (as, some of those in my Patents 1,032,312, dated July 9, 1912 and 1,121,689, dated December 22, 1914) are capable of such variation or slight change as to carry out my present invention, although the particular refinement or feature which I have emphasized above as constituting the broad invention herein is not elsewhere set forth. I refer to the said copendin applications to emphasize the Wide scope o the present invention.

Having described my invention, What I claim as new and desire to secure by Letters Patent is:

1. A shoe bottom filler, consisting of a permanently pliable and resilient filler mass which is quicksetting to a non-flowing, strongly adhesive and cohesive condition and thereafter continues slow drying, as described, and containing comminuted filler material, substantially as described.

2. A shoe bottom filler, consisting of a filler mass which is quick setting to a. nonflowing, strongly adhesive and cohesive and moldable condition, and thereafter continues slow-drying and resilient, said filler mass comprising comminuted filler material, united by a binder, consisting at least in part of glue in a mucilaginous condition, and a sticky, tenacious, water repellent component, substantially as described.

3. A shoe bottom filler, consisting of a gredients and comminuted filler filler-mass which is quick setting to a nonflowing, moldable condition, and thereafter continues slow drying and resilient, and comprising comminuted filler material and a binder, said binder consisting at least in part of a glue in a mucilaginous condition, and a sticky, tenacious, water repellent component in proportions to render the mass waterproof, substantially as described.

shoe bottom filler, containing comminuted filler material admixed with a gelatinous body combined with a chemically coalescing or modifying means rendering the mixture slow drying and sticky, substantially as described.

strongly adhesive and cohesive but 5. A shoe bottom filler, containing comminuted filler gelatinous body combined with a chemically coalescing or modifying means and resinous matter, rendering the mixture slow drying and sticky, substantially as described.

6. A shoe bottom filler, consisting of a quicksetting, gelatinous body mixed with comminuted filler material and combined With chemically coalescing or modifying means, rendering the mixture slow drying and sticky, substantially as described.

7. A shoe bottom fillcrgconsisting of a quick setting, gelatinous body mixed with comminuted filler material and combined with means, rendering the mixture slow drying and sticky, and having a permanent elasticity and resiliency, substantially as described.

8. The herein describcd binder for shoe bottom filler, comprising a quick setting, gelatinous slow drying mass combined with low melting, slow drying, sticky, resinous ingrcdients, substantially as described.

9. A shoe bottom filler, comprising a quick setting, gelatinous slow drying mass combined with low melting, slow drying, sticky, resinous ingredients, and comminuted filler material, substantially as described.

10. A shoe bottom filler, comprising a gelatinous mass chemically drying and sticky, combined with low melting, slow drying, sticky ingredients and comminuted filler material, substantially as described.

11. A shoe bottom filler, comprising a gelatinous mass chemically rendered slow drying and sticky, combined with low melt ing, slow drying, sticky, waterproof i material, substantially as described.

12. A shoe bottom filler, comprising a gelatinous mass mixed with comminuted filler material and having permanent elasticity and resiliency, chemically rendered slow drying and sticky, combined with low melting, slow drying, sticky components, substantially as described.

13. A shoe bottom filler, comprising a material admixed with a rendered slow mixed with body-giving whenset,

gelatinous binding agent, combined with chemically disintegrating and softening means rendering the cementitious mass quick setting, sticky and permanently flexible, ad-

comminuted filler material, substantially as described.

14. A shoe bottom filler, comprising a quick setting, sticky, flexible, gelatinous binding agent, combined with a low melting, sticky, resinous slow drying component, and admixed with a body-giving comminute filler material, substantially as described.

15. A shoe bottom filler, comprising a quick-setting, sticky, flexible, elastic gelatinous binding agent combined with a water repellent, low melting slow drying mass and a body-giving filler material, substantially as described.

16- A shoe b0ttom filler, comprising a quick setting, sticky, flexible, elastic gelat inous binding agent, combined with water repellent, fluxing means renderin the cementitious mass water repellent an slow drying, and a body-giving filler material, substantially as described.

17. A shoe bottom filler, comprising a mucilaginous binding agent, combined with sti flexible adhesive water-repellent inents and comminuted filler material in a mass slow'drying and water-repellent, substantially as described.

18. A shoe bottom filler, comprising a. wator-repellent resinous sticky component, containing the described product of rosin and naphthalene, combined with a gelatinous binding agent treated with chlorid of calcium, and admixed with oomminuted filler material, substantially as described.

19. A shoe bottom filler binder, comprismg a water repellent, resinous, sticky, component, combined with a gelatinous bindagent treated with a water soluble oil for facilitating said combination or fluxing, substantially as described.

20. A shoe bottom filler, comprising an elastic and flexible gelatinous mass combined with olein oil and incorporated with water repellent gredients to render the mass waterproof, rmanently elastic and resilient, and admixed with granulated filler material to a semi-solid, selfsustaining consisteney, substantially as described.

21. A shoe bottom filler, comprising gelatinous matter in combination with g1 cerin and olcin oil for rendering the mass exible and elastic, and tarry, oily ingredients, admixed with comminuted filler material, substantially as deson 22. A shoe bottom filler, comprising a water soluble'mucilaginous component and a resinous ingredient in solution with water soluble oil, and admixed with body material to a plastic moldable consistency elastic substantially as described.

.mg water repellent, resinous,

mam quick setting,

7 setting 23. A shoe bottom filler, comprising a luey component rendered fluid and slow ing by a dissolving agent and admixed with body material to a plastic condition permanently pliable and resilient when set, substantially as described.

'24. A shoe bottom filler, comprising a gluey component in solution with chlorid of calcium, and admixed with body material, substantially as described.

25. A shoe bottom filler, water soluble proteid in solution with water soluble oil, united with sticky adhesive waterproof material and admixed with bodymaterial, substantially as described.

26. A shoe bottom filler, consisting of a water soluble proteid in solution with water soluble oil, united with sticky, adhesive watel-proof material, and admixed with comminuted filler material to a. self-sustaining consistency, substantially as described.

27. A shoe bottom filler component, consisting of a water soluble proteid in solution with water soluble oil, united with sticky, resinous materials but having the water solvent substantially evaporated to render the same capable of subsequent solution in naphtha, substantially as described.

. 28. A shoe bottom filler component, consisting of soluble, gelatinous matter in solution with a water-soluble oil admixed with sticky, adhesive, water repellent ingredients in solution, substantially as described.

29. A shoe bottom filler, consisting of comminuted filler material admixed with a compound consisting of a binding agent containing proteid and starch in proportions to render the combination sticky and adhesive, and a water repellent, resinous component, substantially as described.

30. A shoe bottom filler, consisting of a quick setting, gelatinous and starchy mass combined with low melting, slow drying, sticky, resinous ingredients, and comminuted filler material, su stantially as described.

31. A shoe bottom filler, consisting of a quick setting, gelatinous and starchy mass combined with low melting, slow drying, sticky, resinous ingredients in proportion to make the mass water repellent, elastic and resilient, and comminuted filler material, substantially as described.

32. A shoe bottom filler, consisting of a latinous and starchy mucilaginous bindagent combined with chemically disintegrating and softening means, and sticky resinous matter rendering the cementitious stic and flexible, admixed with comminuted er material, substantially as described.

33. A shoe bottom filler, which is quick and slowdrying comprising a mucilaginous binding agent combined with sticky, flexible, adhesive, water repellent ingredients and comminuted filler material in consisting of a a mass permanently pliable and resilient,

" stantially as described.

36. A shoe bottom filler, consisting of starch jellified to a highly expanded state as by the chemical action of alkalis and acids, combined with a chemically coalescing or modifying means rendering the mixture quicksetting and slow drying, admixed with comminuted filler material to a semi-solid, self-sustaining consistency, substantially as described.

37. A shoe bottom filler, which is quick setting and slow drying, comprising gelatinized matter in solution with olein oil, combined with adhesive ingredients and comminuted filler material, in a permanently tough and adhesive mass, substan tially as described.

38. A shoe bottom filler, which is quick setting and slow drying, comprising comminuted filler material admixed with gelatinous matter in solution with olein oil, combined with slow drying, sticky ingredients rendering the mixed mass plastic and conformable to the extent required for the'practical laying of shoe bottoms, substantially as described.

39. A shoe bottom filler, which is quick setting and slow drying, comprising glue in solution with olein oil, fluxed with water repellent, sticky matter, in which the water portions of the oil are sufliciently evaporated to permit the thinning of the preparation by naphtha, combined with said naphtha, and admixed with comminuted filler material, substantially as described.

40. A shoe bottom filler, which is quick setting and slow drying, comprisinga gelatinous binding agent rendered soft and elastic by a chemical solvent rendered sticky and adhesive with resinous matter and creo- Sote and comminuted filler material, substantially as described.

41. A shoe bottom filler, which is quick setting and slow drying, comprising comminuted filler material admixed with a normally fluid, gelatinous binding agent combined with tar-treated resinous ingredients rendering the preparation sticky, adhesive and conformable for sole laying purposes, substantially as described.

42. A shoe bottom filler, which is quick applied to the setting and slow drying, comprising comminuted filler material, a gelatinous body rendered normally fluid by chlorid of calcium, and saponified, sticky, resinous ingredients, mixed together in an adhesive, elastic, permanently resilient mass, substantially as described.

43. A shoe bottom filler, setting and slow drying, cally treated gelatinous mally fluid condition, and emulsified, oily and resinous ingredients, admixed with ground cork into a sticky, flexible mass conformable to the sole-laying process when shoe bottoms, substantially which is quick comprising chemimatter in a noras described.

44. A shoe bottom filler binder, permanently resilient, adhesive and elastic, comprising a gelatinous body rendered normally fluid by chlorid of calcium, and saponified, sticky, resinous ingredients, sub stantially as described.

45. A shoe bottom filler, consisting of a filler mass, which is quick setting to a strongly adhesive, cohesive, moldable condition, and thereafter continuous slow drying and permanently pliable, said filler mass consisting of comminuted filler material, mixed with a binder, comprising a water absorbent, gluey component, suitable chemical means for preventing hardening of said component, and sticky, resinous material, including rosin and naphthalene, substantially as described.

46. A shoe bottom filler, consisting of a filler mass, which is quick setting to a strongly adhesive, cohesive, moldable condition, and thereafter continues slow drying and permanently pliable, said filler mass consisting of comminuted filler material, mixed with a binder, comprising a water absorbent, gluey component, consisting at least in part of starch, chlorid of calcium, and sticky, resinous material, includin rosin and naphthalene, substantially as described.

47. A shoe bottom filler, consisting of a filler mass which is quick setting to a strongly adhesive and cohesive, moldable condition, and thereafter continues slow drying and permanently pliable, consisting of comminuted filler material mixed with a binder, comprising a gelatinous body in a mucilaginous condition, and sticky resinous matter, consisting at least in part of viscous oil, and rosin, substantially as described.

48. A shoe bottom filler, consisting of a filler mass which is quick setting to a strongly adhesive and cohesive, moldable condition, and thereafter continues slow drying and permanently pliable, consisting of comminuted filler material mixed with a binder comprising a gelatinous body in a mucilaginous condition, and sticky resinous matter, consisting at least in part of viscous oil, rosin and naphthalene, substantially as described.

49. A shoe bottom filler, consisting of a filler mass which is quick setting to a strongly adhesive and cohesive, moldable condition, and thereafter continues slow drying and permanently pliable, consisting of comminuted filler material mixed with a binder comprisin a gelatinous body in a mucilaginous con ition, and sticky resinous matter, consistin at least in part of viscous oil, rosin, and a uidifying agent rendering the mass moldable hot or cold, substantially as described. a

50. A shoe bottom filler, consisting of a. filler mass which is quick setting to a strongly adhesive and cohesive, moldable condition, and thereafter continues slow drying and permanently pliable, sticky and tough, comprising comimnuted filler material mixed with a binder, comprising gelatinous material, rendered slow drying with chlorid of calcium, and sticky resinous material, containing rosin combined with naphthalene, said mass beingfiin a condition moldable hot or cold, su tantially as described.

51. A shoe bottom filler, consisting of a filler mass which is quick setting to a strongly adhesive and cohesive, moldable condition, and thereafter continues slow drying and permanently pliable, sticky and tough, comprising comminuted filler material, mixed with a. binder, comprisin inucilaginous matter, rendered slow rying with chlorid of calcium, and permanently pliable with glycerin, and sticky resinous material, containing rosin and naphthalene, substantially as described.

I 52. A shoe bottom filler, consisting of a filler mass which is quick setting to a strongly adhesive and cohesive, moldable condition, and thereafter continues slow drying and permanently pliable, sticky andtough, comprising comminuted filler {material mixed with a binder, comprising gelatinous material, rendered slow drying with chlorid of calcium, and permanently pliable with glycerin, and sticky resinous material, containing rosin and naphthalene, said mass having the union of its gelatinous and resinous materials romoted with olein oil, substantially as ascribed.

53. A shoe bottom filler, consisting of a. filler mass which is qluick setting to a strongly adhesive and co esive and moldable condition, and thereafter continues slow drying and permanently pliable, consisting of comminuted filler material mixed with a binder comprisin gelatinous matter treated with gllycerin an olein oil, and united in a napht a solution with a naphtha soluble sticky gum, substantially as described.

. body material united 54. A shoe bottom filler, consisting of a filler mass which is quick setting to a strongly adhesive, and cohesive, moldable condition, and thereafter continues slow drying and permanently pliable, consisting of comniinuted filler material mixed with a binder comprising gelatinous matter treated with glycerin and olein oil, and united in a naphtha solution with a naphtha soluble sticky gum, consistin at least in part of rubber-like materials, su stantially as described.

A shoe bottom filler, consisting of a filler mass which is quick sett' to a strongly adhesive, and cohesive, moldable condition, and thereafter continues slow drying and permanently pliable, consisting of comminuted filler material mixed with a binder comprising gelatinous matter treated with glycerin and olein oil, and united in a naphtha solution with a naphtha soluble sticky gum, consisting at least in part of rubber-like material, (including the guttaperchas and pseudo-gutta-perchas in this term), substantially as described.

56. In a shoe bottom filler, a light weight, fibrous body material, mixed with a pasty ingredient and an oily softener to a permanently liable, tough consistency adapted to a shoe ottom.

57. In a shoe bottom filler, a comminuted body material, mixed with a pasty ingredient and an oily softener, including a watersoluble oil and having a slow-drying characteristlc.

58. A shoe bottom filler, comprising a. body material, mixed to a tough, sticky, flexible, self-sustaining consistency with a compound including a gluey gum, and a naphtha solution of a paste-making ingredient.

59. A shoe bottom filler, comprising a comminuted bod material, mixed to a tough, sticky, flexib e, sustaining consistency with a compound including a resinous ingre em; and a paste-making ingredient, united in a naphtha solution.

60. A shoe bottom filler, comprising a comminuted bod material, mixed with a compound inchi 'ng the described product of resin and naphthalene and a paste-making out.

'61. A shoe filler, containin fragmentary bo y material united by a inding agent comprising a paste making ingredient 1n a permanently 'ellified condition and softened and renders tenacious by a water-soluble fat-derived oil.

'62. A shoe filler, containing fragmentary by a binding agent comprising a permanently jellified, starchy ingredient chemically softened and rendered tenacious.

63. A shoe filler, comprising a fragmen- 12E tiiry body material umted by a. binding agent containinga jellified adhesive softened name to this specification, in the presence of and rendered tenacious by an 0'1. two subscribing Witnesses.

64. A shoe filler, comprising a fragmentary body material umted by a binding ANDREW THOMA. 5 agent containing a naphtha solution of a Witnesses:

so-called rubber gum. M. J. SPALDING,

In testimony whereof, I have signed my EDWARD MAXWELL.

It is hereby certified that in Letters Patent No. 1,134,931, granted April 6,

1915, upon the application of Andrew Thoma, of Cambridge, Massachusetts, for an improvement in Shoe-Bottom Fillers, errors appear in the printed specification requiring correction as follows: Page 7, line 101, after the word for insert the article a, page 8, lines 76, 81, 87, 94, 99, 106 111, and 118, for the words consisting of read comprising, page 9 lines 3, 9, and 16, for the words consisting of read comprising; same page, line 91, for the word continuous read continues;

page 10, line 105, for the word sustaining read self-sustaining; and that the said Letters Patent should be read with these corrections therein that the same may conform to the record of the case in the Patent Oflice.

Signed and sealed this 18th day of May, A. D., 1915.

R. F. WHITEHEAD,

Acting Commiaaioner of Patents.

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